Home / 769,623.99-1,061,989.10-425,413.43

Finding the Fourth Proportional to 769,623.99, 1,061,989.10 and 425,413.43

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Solution

The fourth proportional to 769,623.99, 1,061,989.10 and 425,413.43 is: 587,019.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,623.99 : 1,061,989.10 = 425,413.43 : x
  2. Step 2: Convert to fraction form
    769,623.99/1,061,989.10 = 425,413.43/x
  3. Step 3: Cross multiply
    769,623.99x = 1,061,989.10 × 425,413.43
  4. Step 4: Simplify right side
    769,623.99x = 451,784,423,794.36
  5. Step 5: Solve for x
    x = 451,784,423,794.36/769,623.99
  6. Step 6: Final answer
    x = 587,019.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.